Circular saws are indispensable tools for making freehand cuts on a jobsite or at home, but their major drawback is a lack of accuracy when you need to make straight cuts.

Circular saw tracks and guides work great for cutting sheets of plywood, and typically you would turn to a miter saw for cutting smaller stock and trim. But if you don't have a miter saw available, you can make a circular saw crosscut jig that will guide your saw in a straight line for making quick accurate cuts.

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YouTube woodworker, DIY Creators, has made this build video of his crosscut jig, made entirely of pine and plywood, and held together with glue, screws, and brad nails.

Your cuts will only come out as straight as the jig is, so measure and re-measure as you are building the jig. Once complete, you'll have a handy portable jig that you can rely on for making accurate cuts using just a circular saw.